“
So far, up until now, I've never owned true customs IEM. I have owned three universal reshells (UE triplefi10 twice, and Klipsch Custom 3 once), but I'm on the fence that a true custom is born from a specific sound signature developed by the company/brand that is repeatable in every custom build regardless of the wearer's ear anatomy. Let's get started...
For weeks, I...” --alphaphoenix

The Ocharaku Flat4-Kaede
The name Flat4 is derived from the description "Full-range 2-Element 4-Way Effect."
According to the company website this 4-way effect is as follows:
1st effect
Placement of opposed elements reduces mechanical vibration due to anti-resonance.
2nd effect
Twin element parallel drive improves sound pressure sensitivity of low to middle frequency sound.
3rd...